Voltage on the phases or voltage between the phases? I would think between phases should be zero.
Tried to use a high impedance dvm on the gate pins? Should swing from 5 neg to positive 15, I think, depending on driver specs.
I'm not a pro, just a casual comment
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casual notes from the underground:There are some "experts" out there that in reality don't have a clue as to what they are doing.
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